Occurrence • Copper, Molybdenum, Tungsten
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Past Producer • Arsenic, Copper, Lead, Zinc
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Plant • Phosphorus-Phosphates
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Plant • Aluminum, Contained or Metal
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Plant • Titanium, Pigment
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Plant • Phosphorus-Phosphates
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Plant • Chromium, Ferrochrome
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Plant • Phosphorus-Phosphates
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Plant • Phosphorus-Phosphates
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